smart-flower-pot

This is a custom PCB-based smart plant watering system using an onboard ESP32-C3 Supermini. It includes JST connectors for the following:

• 5V solar panel: charges a 3.7V LiPo battery during the day

• Soil moisture sensor: measures soil moisture and waters the plant if it is too dry

• Water pump: pumps water from a container to the plant

• Water level sensor: monitors the water container level

• 3.7V LiPo battery: powers the system

The PCB includes:

• Step-up converter (3.7V → 5V for ESP and sensors)

• Battery charger circuit (via solar)

• DHT22 sensor (temperature & humidity)

• LDR (to detect sunlight and control sleep mode)

What it does:

• Sends sensor data to Home Assistant via MQTT every 1 min (light) or 10 min (dark)

• Waters the plant for 5 seconds when the soil is dry

• Sends a notification if the water level is low (max once per 24h)

• Goes into light sleep when it’s dark to save power

V3 is currently being developed, changing the device to a more compact, hand-sized one.